Pump



F- JOERNS.

PUMP.

APPLICATION FILED MAY 24. 1919.

1,358,213. 7 mum. 9,19 0.

2 SHEETS-SHEET I.

F.1OERNS.

PUMP.

APPLICATION FILED MAY 24, 1919.

1 ,358,21 3. Patented Nov. 9, 1920.

2 SHEETS-SHEET 2.

fire-nay.

' following is a s ecification.

UNITED srArs s P'JATE NT OFFICE.

FREDERICK J OERNS, OF S'l. PAUL, MINNESOTA.

PUMP.

To all whom it may concern i Beit known that I, FREDERICK JoEnNs, tt CltlZell of the United States, residin at St. Paul, in thecounty of Ramsey and S tate of Minnesota, haveinvented a new and usefulImprove-ment in Pumps,;of which the This pump re ates to a design which is adapted togive a constant or steady stream when it is in operation and to, eliminate the strainon the mechanism, whicli is caused in the ordinary pump construction, where it islnecessary tostart the water, or other fluid at eachstroke of the pump. The construction oi this pump is such that excessive wear onany one part is eliminated, due to the arrangement of the parts and the simple, inexpensive design with the partsotfthe same accessible, so that they can be easily put together or taken apart, together with a hood 1 construction, which protects the operating gears, ehminatmg the ordinary danger from the same andv covering them from exposure tothe weather, makes a'most desirable design for a steady stream pump.

The 'partsof-this pump are so fitted togetheras to give a compact design and so arranged as to overcome, any excessive amount of friction, the operating levers having a peculiar'shape and being so connected that the pump rods are'moved up and down freely withfpractically little or no sideFithrustsflagainst the same. This is due tothe'peculiar shape and pivoting of the operating. levers, together with the corn 5 necting links, which are connected to the pump rods. T he operating gears of this pump are held stationary against movement so that they can be freely rotated on their axis. which remains in the same position at all'tlmes during the operation of the pump. T his pump is arranged with. two isets of; levers and connecting arms, which connect the levers to the operating gears in-"such a manner/chat both levers move upward atthe' sametimea certain distance or number of degrees durin'g the rotation of the operating gears, but the levers do. not move ClOWIl-w ward together at any time. In this manner, the pump rods can be operated so as to give a constant flowingstream 0t liquid from the pumpwith the least possible-wear and friction on the pump parts."

* In the drawing:

Figure 1 is a perspective'viewof the pump, the hood of which is removed-..

I Specification of Letters Patent. Patented NOV. 9, 1920. Application filed May 24, 1919. Serial No. 299,384. r

v The 'pumpA isillustrated so as to operate 1 the ordinary, well-known construction of two plungers in one working barrel, one of the pump rods being hollow so that the other rod can reciprocate therein to operate the two plungers in the barrel.

The standard or body portion. 1 of the pump A is cylindrical and has a horizontal flange 2 at the base of the same, which connects with the drop pipe 3.in any suitable manner, so as to. connect the water or fluid chamber 4 ofthe standard 1 with the same. The chamber l is, formed with a division wall 5, which forms a compression chamber 6 and an outlet passageway 7,' so as to discharge .the liquid from 'the chamber 4 throughthe opening 8 near the top of the standard 1.

'A1headportion 9 is formed on the standard llofthe pump A, which has side flanges 10 and a centrally positioned, upwardly projecting flange 11, whih is formed with a bearing 12 for the shaft 13. The shaft 13 is freely journaled in the bearing 12 and is cut down on its ends so as to receive similar gears-let and 1.5, which are held rigidly to the shaft by a key .16 and a nut 18, that is threaded to each endof theshaft. in" this manner holding the gears '14 and 15 rigidly tothe shaft 13 and rotatable with the shaft in thebearing 12. i i i The gears 14 and 15 are driven by suit-' able pinions 19, which .are mounted on theishaft 20, the shaft 20 extending through near the periphery of the same and the other end ofthe link 23 is pivotally connected at 25 to the forward end of the lever arm 26.

- The rear end of thelever arm 26 is pivotally ner to the side flanges lOot' the same, so asto hold the rear end of the lever 26 on the shaft27 bettveeno'ne of the flanges 1'0 and the central-flange 11.- e

The hollow pump rod 28 '01. 'thepump A is'i rigidlycon-nested to a cross head 29, whichis freely slidable on-thevertically extending :guiderods 3'O,'so+as to be' reciprocated: up and down-freely and the cross head 29 is connected with the lever arm 26 by-means of the connecting rod 31, which is pivotedon one .end to the lever arm 26 at 32fl-and having its other end pivoted at '33 to the -cr0ss head 29; Thus, when'the-gear 111 :is operated, the hollow pump rod 28 will be re'cip'rocated up and down freely to operate the pump plunger, which is connected to the same and whichis of ordinary constructiom not 'being'illustrated in the drawing;

-A li1rk3l,=-which is similar to the link-23, is pivoted'onone end at 35 to-the gear 15 and its other end is pivotally connected at 36' to the :forward end ofa lever arm 37, which issimilar to the lever armJ-26 and which is pivotallyi-connected to. the shaft 27 on its rearl'end so that the same can he moved :up and down: freely: the opera-. men. 'of the igear 1 5 by the connecting link 34.

"The inner pump rod '38ii's rigidly connected to an upper *cross head 39,:which' is freely reciprocable onathe vguide rodsx3O above the cross head 29 and thecross head 39 is connected by'the connecting rod'40'f to the lever arm. 37 one end of the connect? ingrod 40 being plvoted at 41 to the lever arm :37 and the other end of the connecting rod bein'g pivoted at 42 to the cros'shea'd '39.

' Thus when the tgear15 is operated, the connecting links, lever arm and connecting rod will operate thercross head39 so as to recip rocate the inner pump rod-38 upan'd down; A suitable packing gland 43, ofiordi-nary construction, is secured in the cross he'adf29 .Z soas to give a liquid tight 'joint a-roundfthe rod 38, which passes through the same I'and is freely reciprocabl'e' when "the Tpumpis in' operation. i

a In the operation ofthe pump A; the driveshaft -20.;is rotated in a suitable vman ner either by the handle 22 orrthe pulley- 21' and the pinions-19 engage the gears'll and 152' to operate the same, simultaneously, and r thus in turn; operatingthe lever arms 26,

and 37, which cause the connecting rods 31 and it) to operatethe cross heads. 29 and 39 a and thus operate the hollow pump iodz 28-and the inner pump rod 38, simultaneously, the gears 14: and 15 operating in the direction of the arrow, illustrated in Fig." 3, and causing the pump rods "to move in an upward direction during 216 degrees of the rotation of the gears 14: and'15 and to move in a downward direction 144'de'grees of the rotation of the gears.

The pivot points 24 and 35 of the upper ends of the connecting links 23' and 34, respeo'tively, are positioned diametrically directlyfopp'ositeeach other on the respective gears 14and 15,when thegears 14 and 15 are secured to the shaft-1'3, so that-in the operation of thefpu-mp A, an overlap is obtainedin the upward' o peration oi the pump r'od's 28 'and 38, to cause thesame to travel together aoertain distance. In this manner, a continuo-us steady stream is discharged by the pump A and the jar, which jerks the connectin parts of the 'ordinary'pump, is entirely-eliminated. There is nooverlap in the downward movement ofthe pump rods and their connectingelements,; as they only travel 144 degrees from the uppermost' pm sition to the lowermost position.

The diagrammatic lllustrations in Figs.

6' and 7, illustratefithe gears 14 and 15 in line with each other and having the same axis as is true oftheirposition in the pump A and these diagrammatic illustrations show the relative positions of theconnecting links 23 and 34 and the operating levers-'26 and 37. 7'

- In Fig. '6 the lever '26vtogethe'r with the' ward direction, beingithrown unwardlby. the .link 34,- which'iistattached to i'tlreigear:

15', thus clearly illustrating thatzbyzthe time" the'ilink "23 and lever=26havereached their.

uppermostpositien, as is?illustratedin the 7, that diagrammatic V illustration of Fig. thelink 341 andthe link 37 rw'ould be inth'e' position illustrated in thisfi'gure, when the link '1 23 "and lever; 26 "start in: a downward directi'n. When-the link-3t andlever 37 assume the position :of the respective parts, suchias therlinkt=23 and the lever 26,:a's illus:v tratedin Fig. 6, "then the, link 23 and the lever 26. will beat their lowermost point orin the position'illustrate-dbythe-respective;

parts in]? ig. 6 by the link 3dsand the lever- 37, and before the link =34: and lever- 37 start to move in'a downward-direction, the link 23 and lever 26 willstart in 'an upward di:-;

rection, thus?;causingtl1e links 23 and 34B and thelevers- 26 and 137-to. move .in a similar direction during: a portion of: the rotation of the gears 1.14 and 15, giving a suflicient overlap to cause the plungers connected'to the connecting: rods 28"and 38 to cause a sufiicientvr-suetion the pump Cylinder to keep the water flowing continuously in the same during the operation of the pumpA.

It is understood that two plungers are used in the operation of the pump A, one being connected to the hollow pump rod 28 and the other to the rod 38, one above the other, in the ordinary, well-known manner, but not being illustrated in the drawing.

The downward movement of the pump rods from the uppermost position to the lowermost position is accomplished quicker than the forward movement, due to the positioning of the links 23 and 84 and the levers 26 and 37 and the operating of the gears 1a and 15 in unison both gears being rigidly keyed to the shaft 18 and therefore when one of the pump rods, with its connecting parts, is traveling in a downward direction, it tends to transmit a certain amount of energy to the other gear, which is operating to draw its connecting rod in an upward direction, thereby equalizing the strain of the gears 1d and 15 and on the driving pinions 19 and preventing uneven wear of the same. In this manner. the load on the gears 14 and 15 and the pinions 19 is transferred or carried to each other through the shaft 13' in a most desirable to give an even, smooth operating device and preventing backlashing on the gear teeth.

The simple arran ement of the connecting links, levers and connecting rods, together with the peculiar shape of the levers and the positioning of the gears, gives a most simple device, which is comparatively cheap to manufacture. eliminating any extreme side thrust on the pump rods during their reciprocation, due to the peculiar connection and pivoting of the connecting rods 31 and. 4-0 and the levers 26 and 37. The mounting of the operating gears l4 and 15 on a single shaft concentric with each other, the shaft being held. stationary in a suitable bearing. gives a rigid construction and allows the operating gears to rotate in unison and allows the driving pinions, such as 19, to effectively operate the gears with a small amount of power compared to the wor r done by the pump, as the friction of the working parts is reduced practically to a minimum.

T he operating levers and gears la and 15 are covered by a removable hood 45, which is held by a pin 46 to the head so that it can pivot on thesame and be raised up to expose the gears and operating levers, or the pin l6 can be removed to entirely remove the hood, as is illustrated in F 1 and 2. This hood a5 extends'over the front of the operating mechanism and the sides of the same rest on the forward edge of the side flanges 16 of the head 9, so as to completely inclose the gears la and 15, together with the connecting partsnvhen the hood 1S in closed position.

removed or swung back so that the working parts beneath the same can be oiled and looked after, if itis desired. It is alsoan essential feature that the side flanges 10 of thehead 9 are cut away andof such. a shape that the gears let and15 can be easily removed or attached to the shaft 18 and the other operating mechanism is easily accessible, thus making it very easy to repair or look after the operating parts of the pump. It is always essential, in any pump, that the operating parts or gears be inclosed and for this reason the hood -il5 is an important feature of this invention, together with the fact that the operating gears are so mounted and the levers so constructed and pivoted that they can be easily inclosed, giving a small compact device with a considerable amount of power for pumping purposes.

The pressure chamber 6 in the standard 1 is also an essential feature and allows the pump to be operated to pump fluid under a considerable pressure for various purposes,

discharging a steady stream of liquid under pressure from the pump. Thepump A is comparatively silent in operation, without jar or jerk, operating smoothly with a small amount of power, the working parts being oiled in any suitable manner so that the same require very little attentionand can be used for any suitable purpose, where it Y is desired to pump a steady stream of liquid.

In accordance with the patent statutes I have described the principles of operation of my invention, together with the apparatus which I now'consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative and that the invention can be carried out by other means and appliedto uses other than those above set forth within the scope of the following claims:

l. A device of the class described, including a pair of operating gears,means for rotating said gears in the same general direction in unison, an operating lever for each of said gears having a common pivot point on one end, a link connecting the free end of said operating lever with one of said gears and a link connecting the free end of the other of said levers with the other of said operating gears at a point diametrically opposite theconnection of said, first link and connecting rods adapted to connect said levers with plunger rods of said device, whereby when said gears are operated, said plunger rods will be reciprocated to cause a a common pivot point on one end, a link fer The hood l5 easilylficonnecting said lever wit) said operating gears {it points diametrically 'o'ppqsite 'a-Ch oflier', cfosshezids," guide rods forsaid crosswlioh said operating g'ears afe rot'ated', "do

during part ofthe stroke of said pump rods 10 specified;

FREDERICK JOERNS. 

